1060218721 has 3 divisors (see below), whose sum is σ = 1060251283. Its totient is φ = 1060186160.

The previous prime is 1060218703. The next prime is 1060218739. The reversal of 1060218721 is 1278120601.

The square root of 1060218721 is 32561.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1278120601 = 4409 ⋅289889.

It is an interprime number because it is at equal distance from previous prime (1060218703) and next prime (1060218739).

It can be written as a sum of positive squares in only one way, i.e., 823058721 + 237160000 = 28689^2 + 15400^2 .

It is not a de Polignac number, because 1060218721 - 2²⁷ = 926000993 is a prime.

It is a super-2 number, since 2×1060218721² = 2248127472717751682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1060218721.

It is not an unprimeable number, because it can be changed into a prime (1060218701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16281 + ... + 48841.

Almost surely, 2^1060218721 is an apocalyptic number.

1060218721 is the 32561-st square number.

1060218721 is the 16281-st centered octagonal number.

It is an amenable number.

1060218721 is a deficient number, since it is larger than the sum of its proper divisors (32562).

1060218721 is an frugal number, since it uses more digits than its factorization.

1060218721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65122 (or 32561 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The cubic root of 1060218721 is about 1019.6829467616.

The spelling of 1060218721 in words is "one billion, sixty million, two hundred eighteen thousand, seven hundred twenty-one".